Have just been through check with different modems, different routers, different local IP ranges (mine is non-standard and not one of the normal defaults). Connected direct to router with no switch in the network and just a short cable ... Different PSUs to the modem and anything else that came to mind!
9.3/9.4/9.5 for every test ... Modem still shows attainable as 24141 with 15.2 SNR margin and 20000 line rate!
I have proved it is nothing here so it must be back in the BT systems somewhere! As I said before - I need to demolish the "ten-day wall". A CS tech I spoke to earlier obviously recognised it as a problem and has scheduled a call back for next Thursday - and with their reputation it will happen.
So, twiddle my thumbs and wait.
16Mbps would make some work a lot easier !
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M H C
taurus excreta cerebrum vincit